发明人杨光,孙丽萍,张德明. "Method for the Synthesis of 1-(3-aminophenyl)-3-ethylurea" [P]. 中国发明专利, 专利号 CN 112643395 A, 授权公告日 2022-01-13.
发明人刘建华,高志强,胡光. "A Process for Preparing High-Purity 1-(3-aminophenyl)-3-ethylurea" [P]. 中国发明专利, 专利号 CN 114281656 A, 授权公告日 2016-10-15.
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